A
Andym
New member
I hope you can see this ok
yeh .. familiar with the adjustable concept - used a few on the VA-r build ... was looking at the square in the end of each elbow .. different position on each, so assumed they're plugged (to attach/insert a Stauf gauge port possibly?) ... not seen 'em like that beforeThey are washer and o ring, type the o ring sits in a grove around the fitting, you Thread the fitting into the item and adjust the nut down onto the washer, this pushes the o ring down and out to seal, you can change the angle of the fitting, the groove is wide so it is possible to adjust angle.
's what i thought they might be ... very handyDon’t worry about them, they are Tapet threaded plugs for removal when inserting test port fittings (1/8 bspt)